405008450660 has 48 divisors (see below), whose sum is σ = 937024103232. Its totient is φ = 145817616000.

The previous prime is 405008450593. The next prime is 405008450699. The reversal of 405008450660 is 66054800504.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9091382 + ... + 9135821.

It is an arithmetic number, because the mean of its divisors is an integer number (19521335484).

Almost surely, 2^405008450660 is an apocalyptic number.

It is an amenable number.

405008450660 is an abundant number, since it is smaller than the sum of its proper divisors (532015652572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405008450660 is a wasteful number, since it uses less digits than its factorization.

405008450660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18227324 (or 18227322 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 405008450660 in words is "four hundred five billion, eight million, four hundred fifty thousand, six hundred sixty".